Sejong is best known for inventing the Korean script, hangul, which is
much easier to learn than Chinese characters. He sponsored the invention of the rain gauge and sundial.
D.
Thomas Aquinas is famous for being a philisophe who followed Aristotle in an attempt to link God with science and Catholisim
Question: In the late 1800s, collective bargaining was a technique used to?
Answer: Win worker's rights'
A:water pollution in the river Thames
FYI: This occurred in London, in July and August
